Lowrance electronic PRO X51 Benutzerhandbuch

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The display is backlit for night use. To turn the backlight on 

or off, press 

 repeatedly until the 

 menu 

appears. Press 

 to turn the light on or the 

 to turn it off. 

 

To adjust the contrast, press 

 until the 

 menu appears. To decrease screen contrast, press 

the 

 key. Press the 

 key to increase 

screen contrast. The bar graph in the Contrast menu box 

shows a graph of the contrast. The screen will also show the 
effects of the change. If you reach the maximum or 

minimum level, a tone sounds alerting you to the limits. Press the 

 

key to clear the menu. 

The unit can display your battery voltage. When activated, Voltage will 

appear just below the temp display. To turn this data on or off, press 

 until the 

 menu appears. Use the arrow 

keys to select on or off, then press the 

 key to clear the menu. 

This unit can show the depth in feet or meters. To change the 

depth units of measure, press 

 until the 

 

menu appears. Use the arrow keys to select the desired unit 

of measure, then press the 

 key to clear the menu. 

This command is used to reset all features, options and settings to their 

original factory defaults. This is useful when you have changed several 
settings and want to return the unit to basic automatic operation. 
Turn the unit off. Press and hold the 

 key and the 

 key at the same time while you press the 

 key. Release the 

keys as the unit powers up. The unit will turn on with factory settings 

restored.  

To show the operating software system information, press 

 

until the 

 menu appears. Press 

 to clear the screen.